Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지
DOI QR코드

DOI QR Code

An Experimental Study on the Convection Heat Transfer of Al-Mg/water Micro Fluid in a Circular Tube with Swirl

  • Received : 2012.10.11
  • Accepted : 2012.11.27
  • Published : 2012.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

In the past decades, extensive studies on convection heat transfer on internal flow have been conducted by using high specific surface area, by increasing heat transfer coefficient and swirl flow, and by improving the transport properties. In this study, we applied a tangential slot swirl generator to improve heat transfer in a horizontal circular copper tube. The Al-Mg particles (approximately $100{\mu}m$ to $130{\mu}m$) were employed for this experimental work. The copper tube was heated uniformly by winding a heating coil with a resistance of 9 ohm per meter for heat transfer. Using Al-Mg particles, experiments were performed in the Reynolds number range of 5,000 to 13,130, with and without swirl. Experimental data transfers or comparisons between Nusselt numbers with and without swirl along the test tube and Reynolds numbers are presented. The Nusselt number is improved by increasing Reynolds numbers or swirl intensities along the test tube.

Keywords

References

  1. R. Saidur, K. Y. Leong, and H. A., "Mohammad, A review on applications and challenges of nanofluids," Renewable and Sustainable Energy Review, vol. 15, pp. 1646-1668, 2011. https://doi.org/10.1016/j.rser.2010.11.035
  2. Ravikanth S. Vajjha and Debendra K. Das, "A review and analysis on influence of temperature and concentration of anofluids on thermophysical properties, heat transfer and pumping power," International Journal of Heat and Mass Transfer, vol. 55, pp. 4063-4078, 2012. https://doi.org/10.1016/j.ijheatmasstransfer.2012.03.048
  3. Zoubida Haddad, Hakan F. Oztop, Eiyad Abu-Nada, and Amina Mataoui, "A review on natural convective heat transfer of nanofluids", Renewable and Sustainable Energy Review, vol. 16, pp. 5363-5378, 2012. https://doi.org/10.1016/j.rser.2012.04.003
  4. H. A. Mohammed, A. A. Al-aswadi, N. H. Shuaib, and R. Saidur, "Convective heat transfer and fluid flow over a step using nanofluids", Renewable and Sustainable Energy Review, vol. 15, pp. 2921-2939, 2011. https://doi.org/10.1016/j.rser.2011.02.019
  5. S. M. Sohel Murshed, C. A Nieto de Castro, M. J. V. Lourenco, M. L. M. Lopes, and F. J. V. Santos, "A review of boiling and convective heat transfer with nanofluids", Renewable and Sustainable Energy Review, vol. 15, pp. 2342-2354, 2011. https://doi.org/10.1016/j.rser.2011.02.016
  6. Govarthan Pathipakka and P. Sivashanmugam, "Heat transfer behavior of nanofluids in a uniformly heated circular tube fitted with herical inserts in laminar flow," Supertlattices and Microstructures, vol. 47, pp. 349-360, 2010. https://doi.org/10.1016/j.spmi.2009.12.008
  7. Adrian Neild, Tuck Wah Ng, Gregory J., Sheard, Matthew Powers, and Stefano Oberti, "Swirl mixing at microfluidic junctions due to low frequency side channel fluidic perturbations," Sensors and Actuators B, vol. 150 pp. 811-818, 2010. https://doi.org/10.1016/j.snb.2010.08.027
  8. Svetlana Popovic and Miodrag N. Tekic, "Twisted tapes as turbulence promoters in the microfiltration of milk," Journal Membrane Science, vol. 384, pp. 97-106, 2011. https://doi.org/10.1016/j.memsci.2011.09.016
  9. L. Syam Sundar and K. V. Sharma, "Turbulent heat transfer and friction factor of $Al_2O_3$ nanofluid in circular tube with twisted tape inserts," International Journal of Heat and Mass Transfer, vol. 53, pp. 1409-1416, 2010. https://doi.org/10.1016/j.ijheatmasstransfer.2009.12.016
  10. Yunus A. Cengel, Heat Transfer, MeGRAW-HILL, Second Edition, pp. 441, 2003.
  11. F. J. Wasp, Solid-liquid pipeline transportation, Trans, Tech, 1977.
  12. R. S. Vajjha, D. K, Das, B. M. Mahagaonkar, "Density measurements of different nanofluids and their comparison with theory," Petro, Sci. Tech, vol. 27, no. 6, pp. 612-624, 2009. https://doi.org/10.1080/10916460701857714
  13. B. C. Pak, Y. J. Cho, "Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles," Experimental Heat Transfer, vol. 11, no. 2, pp. 151-170, 1998. https://doi.org/10.1080/08916159808946559
  14. B. C Sahoo, R. S. R. S. Vajjha, R. Ganguli, G. A. Chukwu, and D. K. Das, "Determination of rheological behaviour of aluminium oxides and development of new viscosity correlations," Petro. Sci. Tech., vol. 27, no. 15, pp. 1757-1770, 2009. https://doi.org/10.1080/10916460802640241
  15. J. Buongiorno, "Convective transport in nanofluids," Journal of Heat and Mass Transfer, vol. 128, pp. 240-250, 2006. https://doi.org/10.1115/1.2150834
  16. R. L. Hamilton and O. K. Crosser, Thermal conductivity of heterogeneous two component system, I and EC, Fundamentals 1 pp. 187-191, 1962.